Techwizz/kernel-fxtec-pro1x
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity

Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

Browse source
This commit is contained in:
Linus Torvalds 2005-10-12 19:07:59 -07:00
commit 02d31ed258
21 changed files with 159 additions and 50 deletions

12
include/linux/netfilter/nfnetlink.h
View file

@ -41,11 +41,15 @@ enum nfnetlink_groups {
struct nfattr
{
u_int16_t nfa_len;
u_int16_t nfa_type;
u_int16_t nfa_type; /* we use 15 bits for the type, and the highest
* bit to indicate whether the payload is nested */
} __attribute__ ((packed));
/* FIXME: Shamelessly copy and pasted from rtnetlink.h, it's time
* to put this in a generic file */
/* FIXME: Apart from NFNL_NFA_NESTED shamelessly copy and pasted from
* rtnetlink.h, it's time to put this in a generic file */
#define NFNL_NFA_NEST 0x8000
#define NFA_TYPE(attr) ((attr)->nfa_type & 0x7fff)
#define NFA_ALIGNTO 4
#define NFA_ALIGN(len) (((len) + NFA_ALIGNTO - 1) & ~(NFA_ALIGNTO - 1))
@ -59,7 +63,7 @@ struct nfattr
#define NFA_PAYLOAD(nfa) ((int)((nfa)->nfa_len) - NFA_LENGTH(0))
#define NFA_NEST(skb, type) \
({ struct nfattr *__start = (struct nfattr *) (skb)->tail; \
NFA_PUT(skb, type, 0, NULL); \
NFA_PUT(skb, (NFNL_NFA_NEST | type), 0, NULL); \
__start; })
#define NFA_NEST_END(skb, start) \
({ (start)->nfa_len = ((skb)->tail - (unsigned char *) (start)); \

15
include/linux/netfilter/nfnetlink_conntrack.h
View file

@ -70,15 +70,24 @@ enum ctattr_l4proto {
enum ctattr_protoinfo {
CTA_PROTOINFO_UNSPEC,
CTA_PROTOINFO_TCP_STATE,
CTA_PROTOINFO_TCP,
__CTA_PROTOINFO_MAX
};
#define CTA_PROTOINFO_MAX (__CTA_PROTOINFO_MAX - 1)
enum ctattr_protoinfo_tcp {
CTA_PROTOINFO_TCP_UNSPEC,
CTA_PROTOINFO_TCP_STATE,
__CTA_PROTOINFO_TCP_MAX
};
#define CTA_PROTOINFO_TCP_MAX (__CTA_PROTOINFO_TCP_MAX - 1)
enum ctattr_counters {
CTA_COUNTERS_UNSPEC,
CTA_COUNTERS_PACKETS,
CTA_COUNTERS_BYTES,
CTA_COUNTERS_PACKETS, /* old 64bit counters */
CTA_COUNTERS_BYTES, /* old 64bit counters */
CTA_COUNTERS32_PACKETS,
CTA_COUNTERS32_BYTES,
__CTA_COUNTERS_MAX
};
#define CTA_COUNTERS_MAX (__CTA_COUNTERS_MAX - 1)

8
include/linux/netfilter_ipv4/ip_conntrack.h
View file

@ -117,6 +117,10 @@ enum ip_conntrack_events
/* NAT info */
IPCT_NATINFO_BIT = 10,
IPCT_NATINFO = (1 << IPCT_NATINFO_BIT),
/* Counter highest bit has been set */
IPCT_COUNTER_FILLING_BIT = 11,
IPCT_COUNTER_FILLING = (1 << IPCT_COUNTER_FILLING_BIT),
};
enum ip_conntrack_expect_events {
@ -192,8 +196,8 @@ do { \
struct ip_conntrack_counter
{
u_int64_t packets;
u_int64_t bytes;
u_int32_t packets;
u_int32_t bytes;
};
struct ip_conntrack_helper;

3
include/linux/netfilter_ipv4/ip_conntrack_protocol.h
View file

@ -52,6 +52,9 @@ struct ip_conntrack_protocol
int (*to_nfattr)(struct sk_buff *skb, struct nfattr *nfa,
const struct ip_conntrack *ct);
/* convert nfnetlink attributes to protoinfo */
int (*from_nfattr)(struct nfattr *tb[], struct ip_conntrack *ct);
int (*tuple_to_nfattr)(struct sk_buff *skb,
const struct ip_conntrack_tuple *t);
int (*nfattr_to_tuple)(struct nfattr *tb[],

2
include/linux/netfilter_ipv4/ip_conntrack_tuple.h
View file

@ -1,6 +1,8 @@
#ifndef _IP_CONNTRACK_TUPLE_H
#define _IP_CONNTRACK_TUPLE_H
#include <linux/types.h>
/* A `tuple' is a structure containing the information to uniquely
identify a connection. ie. if two packets have the same tuple, they
are in the same connection; if not, they are not.

4
include/linux/netfilter_ipv4/ip_nat.h
View file

@ -58,10 +58,6 @@ extern rwlock_t ip_nat_lock;
struct ip_nat_info
{
struct list_head bysource;
/* Helper (NULL if none). */
struct ip_nat_helper *helper;
struct ip_nat_seq seq[IP_CT_DIR_MAX];
};

2
include/linux/netpoll.h
View file

@ -86,7 +86,7 @@ static inline void netpoll_poll_unlock(void *have)
#else
#define netpoll_rx(a) 0
#define netpoll_poll_lock(a) 0
#define netpoll_poll_lock(a) NULL
#define netpoll_poll_unlock(a)
#endif

3
include/net/inet_timewait_sock.h
View file

@ -19,6 +19,7 @@
#include <linux/ip.h>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/timer.h>
#include <linux/types.h>
#include <linux/workqueue.h>
@ -193,11 +194,13 @@ static inline u32 inet_rcv_saddr(const struct sock *sk)
static inline void inet_twsk_put(struct inet_timewait_sock *tw)
{
if (atomic_dec_and_test(&tw->tw_refcnt)) {
struct module *owner = tw->tw_prot->owner;
#ifdef SOCK_REFCNT_DEBUG
printk(KERN_DEBUG "%s timewait_sock %p released\n",
tw->tw_prot->name, tw);
#endif
kmem_cache_free(tw->tw_prot->twsk_slab, tw);
module_put(owner);
}
}

2
net/bridge/br_if.c
View file

@ -79,7 +79,6 @@ static void destroy_nbp(struct net_bridge_port *p)
{
struct net_device *dev = p->dev;
dev->br_port = NULL;
p->br = NULL;
p->dev = NULL;
dev_put(dev);
@ -100,6 +99,7 @@ static void del_nbp(struct net_bridge_port *p)
struct net_bridge *br = p->br;
struct net_device *dev = p->dev;
dev->br_port = NULL;
dev_set_promiscuity(dev, -1);
spin_lock_bh(&br->lock);

4
net/dccp/ccid.h
View file

@ -110,14 +110,14 @@ static inline int ccid_hc_tx_init(struct ccid *ccid, struct sock *sk)
static inline void ccid_hc_rx_exit(struct ccid *ccid, struct sock *sk)
{
if (ccid->ccid_hc_rx_exit != NULL &&
if (ccid != NULL && ccid->ccid_hc_rx_exit != NULL &&
dccp_sk(sk)->dccps_hc_rx_ccid_private != NULL)
ccid->ccid_hc_rx_exit(sk);
}
static inline void ccid_hc_tx_exit(struct ccid *ccid, struct sock *sk)
{
if (ccid->ccid_hc_tx_exit != NULL &&
if (ccid != NULL && ccid->ccid_hc_tx_exit != NULL &&
dccp_sk(sk)->dccps_hc_tx_ccid_private != NULL)
ccid->ccid_hc_tx_exit(sk);
}

6
net/dccp/input.c
View file

@ -375,6 +375,9 @@ static int dccp_rcv_respond_partopen_state_process(struct sock *sk,
case DCCP_PKT_RESET:
inet_csk_clear_xmit_timer(sk, ICSK_TIME_DACK);
break;
case DCCP_PKT_DATA:
if (sk->sk_state == DCCP_RESPOND)
break;
case DCCP_PKT_DATAACK:
case DCCP_PKT_ACK:
/*
@ -393,7 +396,8 @@ static int dccp_rcv_respond_partopen_state_process(struct sock *sk,
dccp_sk(sk)->dccps_osr = DCCP_SKB_CB(skb)->dccpd_seq;
dccp_set_state(sk, DCCP_OPEN);
if (dh->dccph_type == DCCP_PKT_DATAACK) {
if (dh->dccph_type == DCCP_PKT_DATAACK ||
dh->dccph_type == DCCP_PKT_DATA) {
dccp_rcv_established(sk, skb, dh, len);
queued = 1; /* packet was queued
(by dccp_rcv_established) */

17
net/ipv4/esp4.c
View file

@ -5,6 +5,7 @@
#include <net/esp.h>
#include <asm/scatterlist.h>
#include <linux/crypto.h>
#include <linux/kernel.h>
#include <linux/pfkeyv2.h>
#include <linux/random.h>
#include <net/icmp.h>
@ -42,10 +43,10 @@ static int esp_output(struct xfrm_state *x, struct sk_buff *skb)
esp = x->data;
alen = esp->auth.icv_trunc_len;
tfm = esp->conf.tfm;
blksize = (crypto_tfm_alg_blocksize(tfm) + 3) & ~3;
clen = (clen + 2 + blksize-1)&~(blksize-1);
blksize = ALIGN(crypto_tfm_alg_blocksize(tfm), 4);
clen = ALIGN(clen + 2, blksize);
if (esp->conf.padlen)
clen = (clen + esp->conf.padlen-1)&~(esp->conf.padlen-1);
clen = ALIGN(clen, esp->conf.padlen);
if ((nfrags = skb_cow_data(skb, clen-skb->len+alen, &trailer)) < 0)
goto error;
@ -143,7 +144,7 @@ static int esp_input(struct xfrm_state *x, struct xfrm_decap_state *decap, struc
struct ip_esp_hdr *esph;
struct esp_data *esp = x->data;
struct sk_buff *trailer;
int blksize = crypto_tfm_alg_blocksize(esp->conf.tfm);
int blksize = ALIGN(crypto_tfm_alg_blocksize(esp->conf.tfm), 4);
int alen = esp->auth.icv_trunc_len;
int elen = skb->len - sizeof(struct ip_esp_hdr) - esp->conf.ivlen - alen;
int nfrags;
@ -304,16 +305,16 @@ static int esp_post_input(struct xfrm_state *x, struct xfrm_decap_state *decap,
static u32 esp4_get_max_size(struct xfrm_state *x, int mtu)
{
struct esp_data *esp = x->data;
u32 blksize = crypto_tfm_alg_blocksize(esp->conf.tfm);
u32 blksize = ALIGN(crypto_tfm_alg_blocksize(esp->conf.tfm), 4);
if (x->props.mode) {
mtu = (mtu + 2 + blksize-1)&~(blksize-1);
mtu = ALIGN(mtu + 2, blksize);
} else {
/* The worst case. */
mtu += 2 + blksize;
mtu = ALIGN(mtu + 2, 4) + blksize - 4;
}
if (esp->conf.padlen)
mtu = (mtu + esp->conf.padlen-1)&~(esp->conf.padlen-1);
mtu = ALIGN(mtu, esp->conf.padlen);
return mtu + x->props.header_len + esp->auth.icv_trunc_len;
}

1
net/ipv4/inet_timewait_sock.c
View file

@ -111,6 +111,7 @@ struct inet_timewait_sock *inet_twsk_alloc(const struct sock *sk, const int stat
tw->tw_prot = sk->sk_prot_creator;
atomic_set(&tw->tw_refcnt, 1);
inet_twsk_dead_node_init(tw);
__module_get(tw->tw_prot->owner);
}
return tw;

8
net/ipv4/netfilter/Kconfig
View file

@ -139,6 +139,7 @@ config IP_NF_AMANDA
config IP_NF_PPTP
tristate 'PPTP protocol support'
depends on IP_NF_CONNTRACK
help
This module adds support for PPTP (Point to Point Tunnelling
Protocol, RFC2637) connection tracking and NAT.
@ -498,9 +499,14 @@ config IP_NF_TARGET_LOG
To compile it as a module, choose M here. If unsure, say N.
config IP_NF_TARGET_ULOG
tristate "ULOG target support"
tristate "ULOG target support (OBSOLETE)"
depends on IP_NF_IPTABLES
---help---
This option enables the old IPv4-only "ipt_ULOG" implementation
which has been obsoleted by the new "nfnetlink_log" code (see
CONFIG_NETFILTER_NETLINK_LOG).
This option adds a `ULOG' target, which allows you to create rules in
any iptables table. The packet is passed to a userspace logging
daemon using netlink multicast sockets; unlike the LOG target

13
net/ipv4/netfilter/ip_conntrack_core.c
View file

@ -1119,7 +1119,7 @@ void __ip_ct_refresh_acct(struct ip_conntrack *ct,
unsigned long extra_jiffies,
int do_acct)
{
int do_event = 0;
int event = 0;
IP_NF_ASSERT(ct->timeout.data == (unsigned long)ct);
IP_NF_ASSERT(skb);
@ -1129,13 +1129,13 @@ void __ip_ct_refresh_acct(struct ip_conntrack *ct,
/* If not in hash table, timer will not be active yet */
if (!is_confirmed(ct)) {
ct->timeout.expires = extra_jiffies;
do_event = 1;
event = IPCT_REFRESH;
} else {
/* Need del_timer for race avoidance (may already be dying). */
if (del_timer(&ct->timeout)) {
ct->timeout.expires = jiffies + extra_jiffies;
add_timer(&ct->timeout);
do_event = 1;
event = IPCT_REFRESH;
}
}
@ -1144,14 +1144,17 @@ void __ip_ct_refresh_acct(struct ip_conntrack *ct,
ct->counters[CTINFO2DIR(ctinfo)].packets++;
ct->counters[CTINFO2DIR(ctinfo)].bytes +=
ntohs(skb->nh.iph->tot_len);
if ((ct->counters[CTINFO2DIR(ctinfo)].packets & 0x80000000)
|| (ct->counters[CTINFO2DIR(ctinfo)].bytes & 0x80000000))
event |= IPCT_COUNTER_FILLING;
}
#endif
write_unlock_bh(&ip_conntrack_lock);
/* must be unlocked when calling event cache */
if (do_event)
ip_conntrack_event_cache(IPCT_REFRESH, skb);
if (event)
ip_conntrack_event_cache(event, skb);
}
#if defined(CONFIG_IP_NF_CONNTRACK_NETLINK) || \

48
net/ipv4/netfilter/ip_conntrack_netlink.c
View file

@ -177,11 +177,11 @@ ctnetlink_dump_counters(struct sk_buff *skb, const struct ip_conntrack *ct,
struct nfattr *nest_count = NFA_NEST(skb, type);
u_int64_t tmp;
tmp = cpu_to_be64(ct->counters[dir].packets);
NFA_PUT(skb, CTA_COUNTERS_PACKETS, sizeof(u_int64_t), &tmp);
tmp = htonl(ct->counters[dir].packets);
NFA_PUT(skb, CTA_COUNTERS32_PACKETS, sizeof(u_int32_t), &tmp);
tmp = cpu_to_be64(ct->counters[dir].bytes);
NFA_PUT(skb, CTA_COUNTERS_BYTES, sizeof(u_int64_t), &tmp);
tmp = htonl(ct->counters[dir].bytes);
NFA_PUT(skb, CTA_COUNTERS32_BYTES, sizeof(u_int32_t), &tmp);
NFA_NEST_END(skb, nest_count);
@ -833,7 +833,8 @@ ctnetlink_get_conntrack(struct sock *ctnl, struct sk_buff *skb,
static inline int
ctnetlink_change_status(struct ip_conntrack *ct, struct nfattr *cda[])
{
unsigned long d, status = *(u_int32_t *)NFA_DATA(cda[CTA_STATUS-1]);
unsigned long d;
unsigned status = ntohl(*(u_int32_t *)NFA_DATA(cda[CTA_STATUS-1]));
d = ct->status ^ status;
if (d & (IPS_EXPECTED|IPS_CONFIRMED|IPS_DYING))
@ -948,6 +949,31 @@ ctnetlink_change_timeout(struct ip_conntrack *ct, struct nfattr *cda[])
return 0;
}
static inline int
ctnetlink_change_protoinfo(struct ip_conntrack *ct, struct nfattr *cda[])
{
struct nfattr *tb[CTA_PROTOINFO_MAX], *attr = cda[CTA_PROTOINFO-1];
struct ip_conntrack_protocol *proto;
u_int16_t npt = ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum;
int err = 0;
if (nfattr_parse_nested(tb, CTA_PROTOINFO_MAX, attr) < 0)
goto nfattr_failure;
proto = ip_conntrack_proto_find_get(npt);
if (!proto)
return -EINVAL;
if (proto->from_nfattr)
err = proto->from_nfattr(tb, ct);
ip_conntrack_proto_put(proto);
return err;
nfattr_failure:
return -ENOMEM;
}
static int
ctnetlink_change_conntrack(struct ip_conntrack *ct, struct nfattr *cda[])
{
@ -973,6 +999,12 @@ ctnetlink_change_conntrack(struct ip_conntrack *ct, struct nfattr *cda[])
return err;
}
if (cda[CTA_PROTOINFO-1]) {
err = ctnetlink_change_protoinfo(ct, cda);
if (err < 0)
return err;
}
DEBUGP("all done\n");
return 0;
}
@ -1002,6 +1034,12 @@ ctnetlink_create_conntrack(struct nfattr *cda[],
if (err < 0)
goto err;
if (cda[CTA_PROTOINFO-1]) {
err = ctnetlink_change_protoinfo(ct, cda);
if (err < 0)
return err;
}
ct->helper = ip_conntrack_helper_find_get(rtuple);
add_timer(&ct->timeout);

3
net/ipv4/netfilter/ip_conntrack_proto_icmp.c
View file

@ -296,8 +296,7 @@ static int icmp_nfattr_to_tuple(struct nfattr *tb[],
struct ip_conntrack_tuple *tuple)
{
if (!tb[CTA_PROTO_ICMP_TYPE-1]
|| !tb[CTA_PROTO_ICMP_CODE-1]
|| !tb[CTA_PROTO_ICMP_ID-1])
|| !tb[CTA_PROTO_ICMP_CODE-1])
return -1;
tuple->dst.u.icmp.type =

27
net/ipv4/netfilter/ip_conntrack_proto_tcp.c
View file

@ -341,17 +341,43 @@ static int tcp_print_conntrack(struct seq_file *s,
static int tcp_to_nfattr(struct sk_buff *skb, struct nfattr *nfa,
const struct ip_conntrack *ct)
{
struct nfattr *nest_parms = NFA_NEST(skb, CTA_PROTOINFO_TCP);
read_lock_bh(&tcp_lock);
NFA_PUT(skb, CTA_PROTOINFO_TCP_STATE, sizeof(u_int8_t),
&ct->proto.tcp.state);
read_unlock_bh(&tcp_lock);
NFA_NEST_END(skb, nest_parms);
return 0;
nfattr_failure:
read_unlock_bh(&tcp_lock);
return -1;
}
static int nfattr_to_tcp(struct nfattr *cda[], struct ip_conntrack *ct)
{
struct nfattr *attr = cda[CTA_PROTOINFO_TCP-1];
struct nfattr *tb[CTA_PROTOINFO_TCP_MAX];
if (nfattr_parse_nested(tb, CTA_PROTOINFO_TCP_MAX, attr) < 0)
goto nfattr_failure;
if (!tb[CTA_PROTOINFO_TCP_STATE-1])
return -EINVAL;
write_lock_bh(&tcp_lock);
ct->proto.tcp.state =
*(u_int8_t *)NFA_DATA(tb[CTA_PROTOINFO_TCP_STATE-1]);
write_unlock_bh(&tcp_lock);
return 0;
nfattr_failure:
return -1;
}
#endif
static unsigned int get_conntrack_index(const struct tcphdr *tcph)
@ -1123,6 +1149,7 @@ struct ip_conntrack_protocol ip_conntrack_protocol_tcp =
#if defined(CONFIG_IP_NF_CONNTRACK_NETLINK) || \
defined(CONFIG_IP_NF_CONNTRACK_NETLINK_MODULE)
.to_nfattr = tcp_to_nfattr,
.from_nfattr = nfattr_to_tcp,
.tuple_to_nfattr = ip_ct_port_tuple_to_nfattr,
.nfattr_to_tuple = ip_ct_port_nfattr_to_tuple,
#endif

9
net/ipv4/tcp_output.c
View file

@ -435,7 +435,14 @@ int tcp_fragment(struct sock *sk, struct sk_buff *skb, u32 len, unsigned int mss
int nsize, old_factor;
u16 flags;
BUG_ON(len >= skb->len);
if (unlikely(len >= skb->len)) {
printk(KERN_DEBUG "TCP: seg_size=%u, mss=%u, seq=%u, "
"end_seq=%u, skb->len=%u.\n", len, mss_now,
TCP_SKB_CB(skb)->seq, TCP_SKB_CB(skb)->end_seq,
skb->len);
WARN_ON(1);
return 0;
}
nsize = skb_headlen(skb) - len;
if (nsize < 0)

18
net/ipv6/esp6.c
View file

@ -31,6 +31,7 @@
#include <net/esp.h>
#include <asm/scatterlist.h>
#include <linux/crypto.h>
#include <linux/kernel.h>
#include <linux/pfkeyv2.h>
#include <linux/random.h>
#include <net/icmp.h>
@ -66,10 +67,10 @@ static int esp6_output(struct xfrm_state *x, struct sk_buff *skb)
alen = esp->auth.icv_trunc_len;
tfm = esp->conf.tfm;
blksize = (crypto_tfm_alg_blocksize(tfm) + 3) & ~3;
clen = (clen + 2 + blksize-1)&~(blksize-1);
blksize = ALIGN(crypto_tfm_alg_blocksize(tfm), 4);
clen = ALIGN(clen + 2, blksize);
if (esp->conf.padlen)
clen = (clen + esp->conf.padlen-1)&~(esp->conf.padlen-1);
clen = ALIGN(clen, esp->conf.padlen);
if ((nfrags = skb_cow_data(skb, clen-skb->len+alen, &trailer)) < 0) {
goto error;
@ -133,7 +134,7 @@ static int esp6_input(struct xfrm_state *x, struct xfrm_decap_state *decap, stru
struct ipv6_esp_hdr *esph;
struct esp_data *esp = x->data;
struct sk_buff *trailer;
int blksize = crypto_tfm_alg_blocksize(esp->conf.tfm);
int blksize = ALIGN(crypto_tfm_alg_blocksize(esp->conf.tfm), 4);
int alen = esp->auth.icv_trunc_len;
int elen = skb->len - sizeof(struct ipv6_esp_hdr) - esp->conf.ivlen - alen;
@ -235,16 +236,17 @@ static int esp6_input(struct xfrm_state *x, struct xfrm_decap_state *decap, stru
static u32 esp6_get_max_size(struct xfrm_state *x, int mtu)
{
struct esp_data *esp = x->data;
u32 blksize = crypto_tfm_alg_blocksize(esp->conf.tfm);
u32 blksize = ALIGN(crypto_tfm_alg_blocksize(esp->conf.tfm), 4);
if (x->props.mode) {
mtu = (mtu + 2 + blksize-1)&~(blksize-1);
mtu = ALIGN(mtu + 2, blksize);
} else {
/* The worst case. */
mtu += 2 + blksize;
u32 padsize = ((blksize - 1) & 7) + 1;
mtu = ALIGN(mtu + 2, padsize) + blksize - padsize;
}
if (esp->conf.padlen)
mtu = (mtu + esp->conf.padlen-1)&~(esp->conf.padlen-1);
mtu = ALIGN(mtu, esp->conf.padlen);
return mtu + x->props.header_len + esp->auth.icv_full_len;
}

4
net/netfilter/nfnetlink.c
View file

@ -133,7 +133,7 @@ int nfattr_parse(struct nfattr *tb[], int maxattr, struct nfattr *nfa, int len)
memset(tb, 0, sizeof(struct nfattr *) * maxattr);
while (NFA_OK(nfa, len)) {
unsigned flavor = nfa->nfa_type;
unsigned flavor = NFA_TYPE(nfa);
if (flavor && flavor <= maxattr)
tb[flavor-1] = nfa;
nfa = NFA_NEXT(nfa, len);
@ -177,7 +177,7 @@ nfnetlink_check_attributes(struct nfnetlink_subsystem *subsys,
int attrlen = nlh->nlmsg_len - NLMSG_ALIGN(min_len);
while (NFA_OK(attr, attrlen)) {
unsigned flavor = attr->nfa_type;
unsigned flavor = NFA_TYPE(attr);
if (flavor) {
if (flavor > attr_count)
return -EINVAL;